Carburetor attachment for automobiles



March 24, 1931. w. L: GARRETT 1,797,978

GARBURETOR ATTACHMENT FOR AUTOMOBILES Filed 001. 16, 1928 2 Sheets-Sheet 1 ih l/lamll. garr if;

March 24, 1931; w. L. GARRETT 1,797,978

I CARBURETOR ATTACHMENT FOR AUTOMOBILES Filed 00f. 16, 1928 2 Sheets-Sheet 2 gwntoz Patented Mar. 24, 1931 UNITED sTATEs PATENT OFFICE CARBURETOR ATTACHMENT FOR AUTOMOBILES Application filed October 16, 1928. Serial No. 312,851.

This invention relates to a carburetor attachment for automobiles, and more particularly to Vaporizers for use in conjunction with the carburetor and intake manifold of ,5 an internal combustion engine of the automobile type.

The primary object of the invention is the provision of a vaporizer of this character wherein the products of combustion or fuel 1 mixture will be vaporized so as to eliminate raw gasoline from admission to the cylinders of the internal combustion engine, thereby increasing mileage in the use of the engine, and a minimum consumption of fuel.

Another object of the invention is the provision of a vaporizer of this character, wherein the mixture of fuel will be primarily vaporized before admission to the intake of an internal combustion engine, so that maxi mum power can be had in the operation of the engine, with minimum consumption of fuel, and the formation and deposit of carbon and other foreign matter reduced to a minimum, and possibly entirely eliminated.

A further object of the invention is the provision of a vaporizer of this character, wherein the construction thereof is novel in form, so that it can be readily coupled with a carburetor and an intake manifold of an internal combustion engine, more especially of the Ford type, both old and new models thereof, and in the use, will assure quick acceleration with maximum power and minimum consumption of fuel, and at the same time, eliminating dilution of the lubricating oil during the operation of the engine, as well as eliminating carbon or foreign matter deposits within the cylinders of said engine.

A still further object of the invention is the provision of a vaporizer of this character, which is devoid of any moving parts, simple in its operation, thoroughly reliable and eflicient in purpose, readily and easily mounted for use, and inexpensve to manufacture.

With these and other objects in view, the inventionconsists in the features of construction, combination and arrangement of parts, as will be hereinafter fully described in detail, illustrated in the accompanying drawings, showing the preferred embodiments of the invention,,and pointed out in the appended claims.

In the accompanying drawings,

Fig. 1 is an elevation vof the intake manifold of an internal combustion engine of the M Ford type,'and a carburetor, showing the vaporizer constructed in accordance with the invention, applied.

Fig. 2 is a top plan view of the vaporizer detached from both the carburetor and'intake manifold.

Fig. 3 is an elevation of said vaporizer detached.

Fig. 4. is a vertical longitudinal sectional View through a modified form of the vaporizer. v

Fig. 5 is a sectional view on the line 5-5 of Fig. 4, looking in the direction of the arrows.

Similar reference characters indicate corresponding parts throughout the several views in the drawings.

Referring to the drawings in detail, particularly Figs. 1, 2 and 3, there is shown an intake manifold 10, the same being of the type employed in the older models of automobiles of the Ford kind, and a. carburetor 11 which is of conventional style, used with the Ford. Adapted to be attached, both to the intake manifold 10 and the carburetor 11-, is the vaporizer which comprises a shell 12 of substantially cylindrical form, having a hopper-like bottom 13 and a fiat top 1 the latter being provided with an opening 15 which coincides with an inlet 16 in the manifold 10, the top 14: of the shell 12 being joined with the manifold 10 to afford a fluid tight joint therebetween, in any suitable manner.

Formed with the shell 12 and openin into the same is an inlet nozzle 17, the latterlieing flared at its point of communication 18, with the shell 12, correspondingly to the vertical extent of the latter, and is coupled with the outlet extension 19 of the carburetor 11 in any suitable manner, preferably by a bolt and nut fastener 20 at each side of said nozzle, so 'that communication is established between the manifold 10 and carburetor 11, through the shell 12 and its nozzle 17. The nozzle 17, throughout the flared portion of the same, N9

and- 22 follows the external curvature of the shell 12, and the fuel admitted through the nozzle to the interior of the shell will be given a whirling action therein.

Supplementing the bottom 13 of the shell 12 is a sub-bottom 21, into opposite sides of which are tapped lead and exhaust pipes 22 i which are adapted to communicate with the exhaust manifold in brackets, not shown, of the engine, so that heat from the latter will be delivered into a heating chamber 23 and circulated therethrough, formed between the bottoms 13 and 21, to vaporize the charge within the shell 12, as will be clearly apparent.

Depending from the bottom 13 of the shell 12, and opening through the sub-bottom 21 is a nipple 24 to which is attached a drain cock 25, so that heavier fiuid such as water can be drained from the vaporizer at the will of the user thereof.

In Figs. 4 and 5 of the drawings, there is shown a slight modification of the invention, wherein the shell 26 which corresponds with the shell 12 has its top 27 provided with a flanged neck 28, designed for coupling engagement with the intake manifold of an internal combustion engine of the late Ford models of automobiles, while opening into said shell 26 is a vertical nozzle 29 having a lateral flared curved entrance 30 to the shell 26, the nozzle 29 being formed at its lower end with a flange 31 for attachment to a carburetor.

In the use of the vaporizer, the fuel within the carburetor, during the working of the engine, is sucked therefrom into the shell 12 or 26, through the nozzle 17 or 29, and is caused to follow a whirled course within said shell, simultaneously therewith, the exhaust admitted from the exhaust manifold of the engine, to radiate against the bottom of said shell, will efl'ect a varporization of the charge in the shell, prior to the admission of the charge to the intake manifold 10, as will be apparent.

\Vhat is claimed is:

1. A device of the class described comprising a cylindrical casing, an inlet connection at the side of said casing for attachment t0 the carburetor outlet, one end of said casing having outlet means for attachment to the intake manifold, said inlet fitting and adjacent casing wall providing an arcual fuel passage progressively restricted in width from its inlet end and progressively increased in heighth to substantially the full heighth of said casing at its point of communication with the interior of the casing substantially tangential to the wall thereof, said casing having a well at the end opposite said outlet, a heating chamber surrounding said well and having inlet and outlet means for aheating medium, and a valved drain outlet leading through said heating chamber substantially as and for the purpose specified.

2. A device of the class described comprising a cylindrical casing, an inlet opening at the side, an inlet connection at the side of said casing for attachment to the carburetor outlet and having a wall converging toward said casing wall and inlet, one end of said casing having outlet means for attachment to the intake manifold, and said inlet fitting and adjacent casing wall providing an arcual fuel passage progressively restricted in width from its inlet end and progressively increased in height to substantially the full height of said casing at its point of communication with the interior of the casing substantially tangential to the wall thereof.

In testimony whereof I hereunto aflix my WILLIAM L. GARRETT.

signature. 

